Submersible pump



FIG. 1 is a left front elevation view of a submersible pump showing our new design;

FIG. 2 is a front plan view of the submersible pump;

FIG. 3 is a left side plan view of the submersible pump;

FIG. 4 is a right side plan view of the submersible pump;

FIG. 5 is a rear plan view of the submersible pump;

FIG. 6 is a top plan view of the submersible pump; and,

FIG. 7 is a bottom plan view of the submersible pump. 

The ornamental design for a submerible pump, as shown and described. 